RELAYPDF

THE RELAYPDF PLATFORM

From the first render
to the final handoff.

Generate, convert, edit, extract, and automate. A practical document toolbox for your applications and coding agents.

Build your first integration
DOCUMENT / 001PDF · A4
a.Acme StudioDesign with intention.

Invoice

INV—2026—042
September 07, 2026
Northstar Labs

120 Market Street
San Francisco, CA 94103

Due September 21, 2026
USD · Bank transfer

DESCRIPTIONQTYAMOUNT
Brand identity system1$2,400.00
Website design1$4,800.00
Development handoff1$1,200.00
Subtotal$8,400.00
Tax (0%)$0.00
Total due$8,400.00
Thank you for building with us.01 / 01
templateData{ "total": 8400 }
invoice.pdfSample output · ready to inspect
HTML + DATAPRODUCTION PDF

01 / CAPABILITIES

Generate

Create documents that look like your product, from the content and data you already have.

HTML, URL & Markdown to PDF

Chromium rendering with CSS, fonts, page formats, margins, headers, and footers.

HTML · URL · MARKDOWN → PDF

Reusable templates

Handlebars layouts, a stock gallery, draft and publish versions, plus AI template generation and editing.

TEMPLATE + DATA → PDF

Screenshots

Render HTML or a URL to PNG, JPEG, or WebP. Choose a viewport, a full page, or a clipped region.

HTML · URL → IMAGE

Barcodes & QR codes

Generate barcode images for labels and documents, with supported symbologies and optional readable text.

DATA → PNG · SVG

02 / CAPABILITIES

Convert

Bring incoming Office files, images, and email into your document workflow.

Office conversion

Convert Word, Excel, PowerPoint, and supported OpenDocument files with LibreOffice. Control page selection, quality, notes, and tagging for PDF export.

SUPPORTED OFFICE FILES → PDF

Image conversion

Convert image files to PNG, JPEG, WebP, TIFF, or PDF, with optional size and quality controls.

RESIZE · FORMAT · QUALITY

Email documents

Create a readable PDF from EML or MSG, or extract attachments. Original HTML layout and inline-image fidelity are not guaranteed.

EML · MSG → PDF · ZIP

Archival PDF/A

Convert to PDF/A-2 output. The release fixture passes independent PDF/A-2b validation; validate output against your own archival requirements.

PDF → PDF/A-2

03 / CAPABILITIES

Edit

Assemble, finish, and optimize existing PDFs with dedicated operations.

PDF redaction

Remove literal text or page areas and return an image-only PDF without original text objects, attachments, or metadata.

TEXT · PAGE AREAS → REDACTED PDF

Assemble & arrange pages

Merge, extract, rotate, delete, crop, and resize pages. Add bookmarks or combine images into a PDF.

MERGE · SPLIT · PAGE OPERATIONS

Forms & protection

Inspect AcroForm fields, fill and flatten them, add watermarks, or password-protect and unlock documents.

FORMS · STAMPS · PASSWORDS

Compress & repair

Optimize PDF structure, choose a compression preset, and normalize recoverable files. Lossy compression can alter forms, annotations, and tags.

LOSSLESS · LOSSY · REPAIR

Preview & package

Rasterize PDF pages into images and bundle files into a ZIP for the final handoff.

PDF → IMAGES · FILES → ZIP

04 / CAPABILITIES

Extract

Turn incoming documents into searchable pages and information your application can use.

Searchable OCR

Add a text layer to scanned PDFs while retaining existing text. English language data is installed by default.

SCANNED PDF → SEARCHABLE PDF

Structured data extraction

Extract JSON fields using your schema, or get Markdown without a schema. All selected pages are processed within documented limits.

PDF + SCHEMA → STRUCTURED DATA

Text & metadata

Read the existing text layer and inspect page count and document metadata. Text extraction itself does not add OCR.

PDF → TEXT · METADATA

Embedded assets

Extract embedded images or attachments into a ZIP. Embedded-image extraction differs from rendering whole pages.

PDF → IMAGES · ATTACHMENTS

05 / CAPABILITIES

Automate

Connect document operations to your application, terminal, and coding agents.

REST, SDK, CLI, MCP

Use REST, published SDKs for Node.js, Python, PHP, C# / .NET, and Java, the CLI, or MCP. The latest SDK releases include native processing and file and billing helpers.

ONE API · FOUR INTERFACES

Async jobs & delivery

Use URL or async response modes, supported idempotent retries, signed account webhooks, delivery history, and replay.

JOBS · RETRIES · WEBHOOKS

Files & spending controls

Private uploads up to 100 MiB for supported native operations. Account and request per-job caps, immutable rate snapshots, and usage receipts.

PRIVATE UPLOADS · PREPAID WALLET

Workflow integrations

Use the n8n community node or Zapier app. Installation and directory availability are documented separately for each integration.

N8N · ZAPIER · CUSTOM HTTP

KNOW YOUR LIMITS

Clear inputs. Predictable behavior.

Native uploads support up to 100 MiB and 500 PDF pages where documented. Inline and public URL inputs retain their 15 MiB limit. Output and operation-specific limits also apply.

File handling

Put the toolbox to work.

Start with an example, then choose the interface that fits your application.

Explore the playgroundExplore pricing